Beater



F. C. BOOTH Nov. 11, T1947.

BEATER Filed May 1, 1944 1N VEN TOR FREE C. B O 07H BY ld/171407# Patented Nov. 1l, 1947 UNITED STATES PATENT OFFICE BEA'IER Fred C. Booth, Minneapolis, Minn.

Application May 1, 1944, Serial No. 533,499

2 Claims.

This invention relates to beaters for liquid food mixtures such as eggs, cream, mixed drinks, etc.

It is an object of the invention to provide a beater of the class described which will be more conveniently operated and held than conventional types of egg beaters now extensively utilized.

More specifically it is an object to provide a beater which may be conveniently held in place and operated with one hand through the cooperation of ngers and thumb or fingers and palm ci" the hand to efciently apply power with the elimination of cranks and the equivalent mechanical elements.

A further object of the invention is the provision oi"y a compact highly eflicient beater which is continuously operated through the reciprocating movement of a plunger member carrying a rack.

These and other objects and advantages of the invention will more fully appear from the following description made in connection with the accompanying drawings, wherein like reference characters refer to the same parts throughout the views, and, in which:

Figure l is a view mostly in vertical longitudinal section and partly in side elevation of an embodiment of my invention;

Figure 2 is a side elevation of the upper portion of the beater;

Figure 3 is a vertical section taken on the line 3,-3 of Figure 1; and

Figure 4 is a cross section taken on the line Il-4 of Figure 1.

In the embodiment of my invention illustrated a suitable frame for the power parts and working mechanism is provided, for the most part by strip metal of comparative rigid construction comprising a vertical side member 5 having its upper portion first angled for a short distance to form a ange 5a and then again bent upwardly at 5b to afford an attachment abutment and having its upper extremity then turned outwardly forming a finger gripping piece 5c, as clearly shown in Figure 1.

The lower portion of frame strip 5 is offset throughout a portion 5d with its lower extremity secured to a connector clip 6 which in turn is rigidly secured to the slotted upper end of an axle rod l for one of the beater elements. The second or intermediate frame strip 8 has its upper end connected with the abutment attachment portion 5b of the rst strip and extends downwardly in parallel spaced relationship to the intermediate portion of strip 5 dening a wheel receiving space for accommodating the upper portion of a geared fly wheel 9. The lower portion of frame strip 8 is angularly bent outwardly and then downwardly and its extremity is inwardly bent at 8a to make rigid connection with a connection with a connector clip 6, the lower end of .which is rigidly secured to the upper end of a second axle rod 'I upon which the second beater element is mounted. The two axle rods I may be constructed from an integral, heavy, relatively rigid wire shaped in the form of a yoke and flattened at its horizontal lower end and each having its main portion or shank inclined somewhat from the vertical with its lower portion bowed outwardly to avoid interference with the beater element disposed on the opposite axle rod. The rod 1 thus diverge somewhat from their upper to their lower ends.

A third frame strip Il] is employed having a vertical upper portion Illa which is secured iiush against the upper portion of intermediate frame strip 8, a rivet or other suitable means uniting the upper portions of frame strips 5, 8 and IB. The upper extremity of strip I0 is out-turned forming a finger piece IIlb which extends for the most part in alignment with finger piece 5c of the first frame strip. The bodyl and greater portion of frame strip I0 is disposed outwardly in offset relationship to the attachment portion Illa, being spaced from frame strip 8 a sufcient distance to form in conjunction therewith a mounting and housing for the power transmission elements of my device.

The geared fly wheel 9 is mounted between frame strips 5 and 8 being keyed or otherwise secured to a relatively heavy horizontal shaft II which is journalled in suitable bearings i2, as shown, of the ball type affixed to the outer sides respectively of frame strips 5 and ill. Shaft II has afxed near the left-hand end thereof a driven pinion I la which normally is in mesh with a relatively large driving gear I3 ailxed to a hori- Zontal stub shaft I4, having its ends slidably mounted in vertical slots 8s and Ills provided in the medial portions of frame strips 8 and Ii), it being clear that when stub shaft I9 is disposed at the lower ends of said bearing slots, gear I3 is then .meshed with driven pinion IIa. Stub shaft I@ has also affixed thereto a pinion I5 the outer end of which is spaced a slight distance inwardly of the frame strip 8 and which pinion is in constant mesh with a vertical rack bar I6 which may be constructed of rugged relatively rigid metal of a suitable gauge. Rack bar I6 is guided at its lower end in an apertured portion 8b of the strip member 8 which extends horizontally to form the oiset and its upper portion extends through a suitable slot Hic and an apertured portion Id in the iinger piece portion of the strip portion I0. The rack bar i6 is of suicient length to project in its inoperative position for some distance, say approximately one and one-half inches or two inches above the iinger grip 'pieces-3 ca and Ibiterminatingsratwits upper end in a reinforcing cros'shead Ilia,V winch is adapted to be depressed either by the thumb or the palm of the hand. A coil spring I1 is interposed between the finger piece b and :the

underside of said crosshead la urging said rackbl bar to its upwardly projected normal position.

A pair of more or less conventional blade-beater elements i8 having upwardly converging shank portions ISa and looped lower portionsilSh-lare pivotally mounted upon the axle rods l, said ele- A 1ments,zasis commonly the ease',=beingconstructed rromfz hardenedrthinostriprmetal such as spring fsteelf andhaving their; upper-ends affixed f-to ansnular. col-lars I Sfwl'ii'chtare'frotatably 'mounted on i. thesupper: portionsf-of :ther axlerods'` l. @Sprockets ,25

-sziarelaixed to fthe-upperfendsfoffthe collars l 9 wand' to fthe-beater -elements. and theseisprockets are f: innconstantr'm'esh.withgearxfteeth '911: and 9b' re- I1spectivelyfforlm'ed on the outer and inner-,marginal portionsfof :the gearedfily wheel.- 9. `'A 'reinforcing I vmountinghead 2 I fof' general elliptical fshape and shaving a depending. guard'iiange A2m; -covers the atop and edgesaof--theesprocketsvZU .and serves to A'reinforce-theconnection between -the --rarnev mem- -b`ers 5 andfS withthe axle-"rods ends and is pro-1 fr ,vided-:atfitheiront :and/back of Athe :beater fwith :large- 1 depending f. attachment --lI-lgs 2l bA to which fthe upper endsfof-af-reinforcingyoke memberl are attached at frontfand rearfof `the' beatergsaid f yoke.A member `being looped at itslower -p'ortion to.

f ond? finger-1ct -thehand preferablybeingY Vdisp osed beneath' thefnger piecese and il lid with-either the thumb or the palmfof vthe` handzfpositioned tordepress thefsame. @When i-,heaackloar Itis' depressed .and'in-'constantimesh` with .thez pinion I 5 rixd to shaft 14; rotary movementis imparted-to .this 4shaft aridxthe shaft isduring the? downward `movement. of .the racle bar, A.iournallediinithe lowers 4`endstof .thelbearingzlslots IDs: andr's respectively, z gear 'Il 3 :beinglthenmeshedfwith thedrivenzpinion .lfi onthermainswheel shaft' l l. "Geared' wheel? 9 is .'thus rotatedA and is of adequate'. thickness. and xweight tofprduce a fly wheelieffe'ct and: of course, drives'the `two -sprocketsf-Z 0 l for thebeater elements L .'inopposite directions, the" blades i 'ofl the beater elements being- `properly synchronized' and positionedlrto cooperate-i and clear iintheirV rotated ffmovements. When; pressurefon -the`rack bar isY f releasedsp'ring'l l'I` lretracts l-the bar; moving =the `sameupwardly and insod'oingthrough themesh- Aing-f thee small2-pinionl5 with-the rack bar l `4.slightly iraises Yshaft i4 in-`the-slotted'.bearings 8s and "il Us respectively;- therlebyf disengaging' ithe driving gear i3 from driven pinion l la of the main shaft. Thus the fly wheel 9 continues to revolve and speed is progressively increased through successive downward reciprocating strokes of the 5 plunger or rack bar I6.

The operation of the device is very convenient, enabling an operator to manipulate and position the device with the use of one hand only. A gyroscopic action is produced by the rapidly rotatwring flyfwheel 9 which tends to stabilizethe position 'of 'the beater in the material to be mixed or beaten and with the very eiicient transmission of recti- "-"linear movement to the rotating wheel shaft. Adequate power and speed mai7 be obtained for 5 beating thick liquids or semi-liquids as eggs, mix- `tures of'flour, cream and many food products.

v.It -will;.of-course, be understood that various changes may be made in the form, details, arrangements and proportions of the various parts 20 without departing from the scope of my invention.

v-What I .claim is: i 1.:A"handsupported beater f device, 'having in combination, an upright frame having a lower portion for'journallinga pair ofebeater elements, the upper 'portion `o'i2saidv iframe f including a Npair "of upwardlyextending strip-members spaced apart .fat their-Yintermediate'portions and xed'together adjacent their upper portions, said frame includvfingiawthird strip'extending parallelto` and inter- 30 mediate ci thespacedfportionso said'rst men- 4 Ationedand outer strips, a shaft extending *transverselyfthrough alljof said strips; means on said outer'.strips-forjournallingsaidshaft, a beaterdriving wheel ixed to 'said shaftand accommoi dated between said third stripfand one of said .fouterfstrips, `the-.upper extremities oisaid outer strips being out-turnedtoxprovide ngergrips, a

. reciprocating,` actuating memberv 'extendingl lonfgitudinallyfof-said frame andhaving its driving 0 portion accommodated between said intermezdiate--strip'and onea'offsaid'outer gstrips, driving i. connections between :said reciprocating member and said-wheelfor revolving'said wheel when said reciprocating member 4is depressed, resilient means 45. for-elevating said actuating membergmeans for releasing driving engagementbetween said actu- .ating member and 'saidwheel during the elevating stroke ofsaid actuating. memberY and said actuating member having ahead piece extending '50 abovesaid frame.

2. A hand-supported beater device" having in combination, an Aupright frame having: a lower portion for journalling a pairofbeater elements, the upperfportion of said frame comprising a pair of upwardly extending strip mem-bersspaced apart "--andfdisposed parallel at their intermediate portions and offset andfsecured-together at-their up- A-per portions; said-frame including a third strip ex- -tending parallel to and intermediate ofthe spaced portions of said firstmentioned outer strip, a shaft extending transversely through all of-saidstrips, means on @said outer'lstrip `for journalling said l shaft,.a-beaterdriving wheel fixed tov said shaft and'- accommodated r'betwi-ien said intermediate -strip' andoneof said outerI strips, the upper exsaid reciprocating rack member extending above said frame and having a head piece and a spring interposed between said head piece and the top of said frame for elevating said rack.

FRED C. BOOTH.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date Netschke Apr. 13, 1937 Hauck, Jr May 6, 1890 Beezley et a1 Apr. 11, 1916 Madigan July 7, 1931 Spanier May 15, 1900 Madigan Nov. 19, 1929 Kai! Oct. 27, 1931 Kelley July 9, 1935 

